Internal-combustion engine.



C. W. WEISS.

INTERNAL COMBUSTION ENGINE.

Amlcmon mw luLYzs. |914.

l. PatentedAug. 17,1915.

2 WITNESSES d CARL W. WEISS, 0F NW YORK, N. Y.

INTERNAL-COMBUSTION ENGINE.

Bpeoication of Letters Patent.

Patented Aug. 17, i915.

Application tiled July 25, 1814. Serial No. 853,015.

I'o 1H 11i/ioni, it mail concern.'

lle it known that I, CAnL NV. Wniss, a citizen of the United States, residing in the borough of Brooklynof the cityiof New York, in the State of New York, have 1nvented certain new and vuseful Improvements in Internal-Combustion Engines, of which the following is a specification, reference beingr had to the accompanying drawin forming a part hereof.

gr:lhis invention relates to internal combustion engines in which the fuel oil is injected into the combustion chamber and is there vaporized and mixed with the air'to forni the charge and more especially to en incs oi this class in which the heat generate 'by the compression of the charge is mainly relied upon to produce ignition.

The invention 1s articularly concerned with the mechanical evice by which the oil, injected under high pressure and at great velocity, is broken up into spray and vaporized, and consists in an improved spraying and vaporizinor device.

The invention will be more fully explained hereinafter with reference to the accompanying drawing, in which it is illustrated, and in which- Figure 1 is a view in longitudinal section of an internal combustion engine which embodies the invention, some of those parts which are not necessar to an understanding of the invention being omitted. Fig. 2 is a top view of the means, of well known construction, which may be employed to inject the oil into the combustion chamber. Fig. 8 is a detail view in section showing the improved spraying and vaporizn device in relation to the nozzle through w ich the oil is injected. Fig. 4 is a top view of the spraying and vaporizing device removed from its seat.

The engine, as shown in the drawing, may be of ordinary construction, except so far as the spraying and va orizing device is concerned. As shown, tlie working cylinder and combustion chamber A is provided with a trunk-piston B connected by a pitman B with a crank shaft C. The crankchambcr A is inclosed, as usual, to permit the compression b the forward stroke of the piston of the air required for the formation of each char e. Ihe cylinder is also provided, as usua with an inlet ort a communicating with the crank-cham er A" and arranged to be uncovered by the. piston as it approaches the limit of its forward movement, and with an exhaust port a', also arranged to be uncovered by the piston, preferably slightly in advance of the inlet port-a. The cylinder is also provided, as usual, with an inlet port a to admit air to the compression chamber A2 as the piston aproaches the limit of its rearward movement. The cylinder A, as well as its head A. is water-jacketed.

The fuel pump G, operated from the crank shaft C in the usual manner, is constructed and arranged so as to deliver the fuel oil, under high pressure and with great velocity, through a suitable nozzle g into the combustion chamber. The nozzle g is conveniently-located in the wall of the head A of the cylinder and injects the oil into a recess a3 in such head. Opposite the nozzle g, and seated freely in a seat a* formed therefor in the head A is the im roved spraying and vaporizin device D. his comprises a central body which preferably has suicient mass to retain the heat well when it has once become heated and fits freely in its seat a* so that it shall be to some extent insulated from the water-jacket and therefore shall not cool off as rapidly as it mi )ht otherwise. The up er or outer end of t ie body d is formed wit a flat face d in a lane at right angles to the axis of the nozz e g and co-axial therewith. From the central body d, at or near its up er end, extend radially integral arms d', w ich support a ring d", formed integral therewith, the inner face ai being at right an les to the lane of the face d of the ody and exten ing slightly above and below such plane.

In the operation of the en ine, when the bod has become thorough y heated, the fue oil, injected through the nozzle g, under great pressure and at hi li velocity,impinges violently upon the flat ace d of the body d and is broken up into a fine spray and also vaporized to some extent throu h contact with the heated body d. The fine y divided particles of oil fly off, also at a high velocity, in a plane or planes substantially at right angles to the axis of the nozzle g, and imp inge violently upon the inner face df' of the rin d, whereby the oil is still further bro en up and vaporized. By such means the vaporization o the oil is carried practically to a degree of perfection and the quality of the resultant mixture with the air is improved and the eiiiciency of the engine increased.

It will be obvious that the form of the vaporizer may be changed more or less to suit different conditions of use and that the invention is not limited to the particular form shown nor to its precise arrangement in the combustion chamber.

I claim as my invention:

1. In an internal combustion engine, the combination with a fuel nozzle and means to inject the fuel oil through the same under high pressure and at great velocity, and a spraying and vaporizing device located in the path of the oil having a flat face upon which the oil impinges at right angles and a ring surrounding the flat face in the same plane therewith and against 'which the particles of oil dashed from such flat face may ixnpinge violently.

2. In an internal combustion engine, the combination with a fuel nozzle and means to inject the fuel oil through the same under high fessure and at great velocity, and a spraying and vaporizing device comprising a central body with a flat face against which the oil is ejected at right angles, integral, ra-

dial arms, and an integral ring in the saine plane with said fiat face supported by said arms and against the inner face of which Earticles of oil from the face of the central ody are dashed violently.

3. In an internal combustion engine, the combination of a combustion chamber, a fuel nozzle projected through the wall thereof, means to inject the oil under high pressure and at great velocity,l and a spraying and vaporizing device seated freely in the wall of the combustion chamber opposite the fuel nozzle, such device having a fiat face against which the fuel oil impin es violently, and an integral ring surroun ing the fiat face in the same plane therewith and against' which the particles of oil are dashed from such flat face.

This specification signed and witnessed this 24th day of July, A. D. 1914.

y CARL W. WEISS.`

Signed in the resence of- ELLA J. Rom, Financie J. Mtmmn'.

Sonica c! thirpntent any De dbtliled for In m each, by addi-ouin; the "dominican of retenes,

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